Means for pumping lubricants



June 7, 1932. H. B. SHEPPARD MEANS FOR-PUMPING LUBRICANTS Filed Nov. e, 1929 5 sheets-sheet 1 FVG] Filed Nov. 6, 1929 3 Sheets-Sheet 2 K l IMM HENRYERNARpJHEP/mnp, Y M

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H. a. SHEPPARD 1,862,164

MEANS FOR PUMPING LUBRICANTS Filed Nov. 6. .1929 s sheets-sheet s fn/um HENRY ,BERNARD HEPPARD,

(filmen Patented June '2, 1932 e Y ,U I

n STATES narrar BERNARD snnrrnrm,` or nnnnrjmvennnn MEANS FOB PUMPING LUBRICANTS Application filed November 6, 1929, Serial No. 405,072, and in. Great Britain November 16, 12928.

This invention relates to apparatus for mechanically supplying or delivering lubricant of the jkind comprising a container for the lubricant, alubricant compressing pis- ,5 ton in said container, lubricant distributing mea-ns, a pump located between said distributing means and the lubricant containeigineans for operating the pump so `as to pass lubricant from the container tothe distributing '10 means and means for operating the distributing means.

i The present invention is directed more particularly to the means, in the above indicated kind lof apparatus,v for pdistributingI and de- 15 livering the lubricant and has for its object to provideimprovements thereto which will permit of amuch simpler and more compact construction of apparatus. I

Apparatus for mechanically supplying or i 2o delivering lubricant made according to this invention is characterized by the provision of a lubricantreceiving member operable in "abutment with the plane face of a stationary lubricant deliverymember and adapted to distribute lubricant to ports in the delivery member for delivery to a plurality of sources,

means being provided for operating said re- *ceiving and distributing member.

The lubricant distributing member may be an annulus or a solid disc with lubricant conveying passages arranged in its structure `The disc-like or annular lubricant distributing member maybe provided with teeth for the engagement of a driving pinion for effecting its rotation. j i

Referring to the drawings filed herewith z-V Fig. 1 is a part 'sectional elevation` of one form of device made in accordance with this A invention; Y

Fig. 2 'is an. end elevation of same; and Fig. 3 is a detail sectional view showing a modification.

Fig. 4 is a half end modilied form.; j Y i l Fig. V5 is a part Vsectional elevation thereof.` '2 vis a container Vfor lubricant which may be detachably secured `by `screw thread 3 in j the mouth of :a chamber 4 formed in a bracket 5 of abase 6. ln the container 2 is a travV ersing piston 7 adapted to be operated by a screw. threaded rotatable piston rod 8 which is connected to, Vor integrally combined with a driving spindle 9 mounted inthe bracket 5. On the driving spindle 9 is a rotatable sleeve 10 carrying at its inner end an eccenftricor cam 11 located in the chamber 4 and encircling this cam is a strap 12 which isv adapted to be reciprocated transversely of 'the chamber 4 by rotation of the cam, said strap havingalateral stem 13'at eachv side `constituting plungers at the inlet ends of two small force pumps 14 housed in the-n' bracket `diametrically opposite'to one a-nother. T he pumps 14 are each provided with a non-return valve 15 at the outlet end which communicates with an inlet '16 arranged in the renewable centre piece 17 of a rotary disclilre lubricant receiving and distributing member 18. Atlthe outer end of the rotatable sleeve 10 and rotatable therewith is a ratchet wheel 19 and interposed between this ratchet wheel and the bracket is a ball thrust wash- '-ei"20. Engaging theratchet wheel 19 is a pawl` 21. operated byA a lever 22 carried by an extension 23 of a collar24 rotatably mounted over a neck 25 vof the bracket 5.` Keyed to the spindle 9 is a friction plate 26 held in abutment with the outer face Tof theV ratchet 4wheel'19 .byja coil spring 27, the tension on the springLbeing'effected ,bya locking'ring 4Thei'inlet end of each force pump `14 Vis provided with inlets29 for the passage of lubricantfrom the chamber 4, the latterbeing in open communication with the adjacent open end ofthe lubricant container 2. Y

The rotary distributing members 18 are elevation of a 'further Ypinion 32 being driven by a star wheel 35v sie i* holes 42 to the Han'gel43 of the housing 30y 'and held in tight abutment with the rotary each rotatably mounted in a housing 30 of` the bracket 5, being provided with a ring of teeth 31 for the engagement of a bevel pinion32 which is mounted on a spindle 33 in a bearing 34 ofthe housing 30, the bevel positioned so as to be engaged and rotated by a lateral pin 36 projecting from'theface of the ratchet wheel 19. Y

In each rotary distributing member 18 is a radial lubricant conveying passage 37 havingY opencoinmunication with a'port 38 and the inlet 16 in the centre piece 17. This passage-37 has two lateral ports 39 and 40. Mounted adjacent the outer face .of the rotary distributing member 18 is a stationary disc 41 which is secured by set screws at the disc-like distributing member 18 by the Vspring 44. 1n the stationary disc 41 are two series of circumferentially arrangedr lubri- `cant delivery orifices 45 with which the .ports ratchet wheel r19.

39 and 40 in the rotary lubricant distributing vmember 18 are adapted to register.'

VInfoperation, the lever 22 is oper any suitable means inl order to actuate the This causes the sleeve 10 and cam 11 to rotate, and the cam operating on the strap 12 effects reciprocation thereof. Assuming that no pressure of lubricant obtains in the container 2, the friction between the ratchet and the adjacent friction plate 26 is sufficient' to rotate said friction plate which in turn rotates the spindle 9. VRotation of the spindle draws thepiston forward against the lubricant in the container 2 *until sufficient lpressure is exerted onr the lubricant to cause the friction plate 26 to slip. As the strap 12 reciprocates, the lubricant now un-V der pressure enters the pump 14 through the inletsi29 when uncovered bythe plungers 13 and on forward movement of the plungers Vlubricant is forced past the non-return'valves 15, throughv the inlets 16 and ports 38 and into the passage 37and lateral ports 39 and 40 of the rotary distributing member 18 to the inner face of the stationary lubricant deliv- `V ery disc 41.V vThe distributing member 18 is rotated through the medium ofthe star wheel 35 andpinion 32, and the ports 39 and 40 register in sequence with the delivery ports 45 whereby lubricant is delivered therethrought under pressure of the pumps 14. VWhen the pressure on the lubricant inthe, container 2.7falls'd'ue tothe discharge of lubricant therefrom',the-friction plate 26 again operates until a pressure is againv setup and .the above operation is repeated.

Y 4 Alternatively delivery ports'46 may be ar- Ves The action, therefore, is such that the whole` force of the pumps operates on each delivery outlet 45individually. f l

ranged lperipherally in the flange 43 ofthe housingy in lieu of,` or in addition Vto the ated by ports 45 and adapted to communicate with the passage 37 of the distributing member 18 as shown in Fig. 3, and where desired a suitable paclringring 47 may be interposed between tlie periphery of the distributing mem-v ber 18 and the flange 43 and held in position by abutment member 48, 49 and 50y and a spring 51. 'f Y In theconstruction illustrated the Vpiston 7 is shownin the position when'a charge of lubricant is required and for retractingfthe vpiston to the outer end of the container, a hand lever 52 is provided at the eXtreme end of the spindle 9.

The load on the spring 27 can be altered to the pressure requiredy to be maintained on the lubricant. Y

f Although the star wheel is illustrated as kthe driving mediumfor the spindle 33 and thestar wheel is operated by the pin 36, it is to be understood that a 'suitable arrangementV of gears or pinions'may be provided for driving the spindle 33.

Figs. 4 and 5 illustrate amodiication whereby provision is made for a plurality of delivi ery pipes 53 to be readily andquickly coupled up to the delivery member- 41 and this is ef-V orifices are provided in thevv delivery mem.

ber 41 as shown, the inner ring of elbows 54 are of sufiicientlength from the bend to `'their outer ends so that the outer or couplingends approximately occur `on the same circumferential line,'consequently the adjacent armsY 57 of the spider"56 are long and short. In-

order to strengthen the'longer arms and prevent the tendency of elbows retained thereby from becominofloose an additional spider 58 is provided. loosely mounted on the smooth portion 59 of a screw threaded stud 60 which is threaded into the delivery member 41 and by means of a cap 61 engaging the outer Vend of this stud the elbows 54 can be adjusted.

' ing member 18 is provided withA its lubricant conveying passage 37 y in the form of a radial groove in its. face adjacent the delivery memfrom the passage 37 into the delivery orifices 45, thus eliminatingthe necessity .for providing the ports 39 and 40 illustrated in Figs. 'i 1 and 3.V

60, the pressure of the spiders 57 and V5801iv Y Y 120 In this modification, the rotary distribut-v Y ber .41' whereby the lubricantissues directly.

1n use, for coupling up'the'pipes 53 to the;

oth spiders 57 and 58 are `or delivering lubricant comprising a member formed with an open mouthed chamber having a non-return valve, an open ended container for storing lubricant detachably secured to the mouth of said chamber, a lubricant compressing piston in said container for traversing lubricant therein bodily under pressure to the chamber, a pump located in said chamber and operable in a compres-sed mass of lubricant therein for ejecting lubricant in a radial direction from the chamber past said non-return valve, said non-return valve being arranged co-axial with the pump, a housing secured to the member and accommodating the non-return valve, a stationary lubricant delivery member secured eXteriorly to said housing, a rotatable lubricant receiving and 'distributing disc mounted interiorly of the housing and adapted to feed lubricant in a forward direction continuous with the direction of entry of said lubricant to saidv tainer for storing lubricant detachably sccured to the mouth of said chamber, a lubricant compressing piston in said container for traversing lubricant therein bodily under pressure to the chamber, a. pump located in said chamber and operable in a compressed mass of lubricant therein for ejecting lubrican't'in a radial direction from the chamber past said non-return valve, said non-return valve being arranged co-aXial with the pump, a housing secured to the member and accommodating the non-return valve, a stationary lubricant delivery member secured exteriorly to said housing, a rotatable lubricant receiving and distributing disc having a. driving pinion thereon mounted interiorly of the housing and adapted to feed lubricant in a forward -direction continuous with the direction of entry of said lubricant to said distributing disc and to convey it selectively to outlets in the lubricant delivery'member for discharge therefrom still in a forward direction, means for operating the pump, frictional means associated, and automatically operable, with said pump operatingV means for operating the lubricant compressing piston in relation to a load on said frictional means,and means associated with the pump operating means for operating the lubricant receiving and distributing disc, said means comprising a spindle rotatably mounted in the housing, a member faston said spindle and located eXteriorly of the housing for ro-l i.-

tation by the pump operating means, a pinion on the spindle and rotatable therewith, lo#l cated interiorly of the housing and engaging the driving pinion on the lubricant receiving and distributing disc.

In testimony whereof, I afIiX my signature.`

HENRY B. SI-IEPPARD.

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